Evaluation of varieties Jonagold group was conducted in 2012 and 2013 on the basis of biology and morphological parameters (organogenesis), for the introduction of agro-ecological conditions of Eastern Slavonia. Studies were conducted at the Agricultural Institute Osijek (locality Tovljač, Eastern Slavonia). The research was performed on five clones Jonagold (Decosta, Novajo, Supra, Jonaprince and Jonagold – standard). Trees are aged for five years (knip seedlings, 2011) grafted on M9 rootstock (NAKB T337), tree forms of a slender spindle. There were made following pomological and technical measurements: measuring the TCSA, measuring the growth volume, counting of flower spurs, measuring an average length of branches, determining the density of flowering, measuring the distance of the first element of the entries and determine the spur percentage. The highest average TCSA in 2012 was determined in varieties Decosta, and lowest in Jonagold. In 2013, the highest average TCSA was found in the cultivar DeCosta, and lowest in Jonagold and Jonaprince. The highest fruit canopy volume in 2012 was determined in Jonagold Supra and the lowest in cv Jonaprince. In 2013 the highest fruit canopy volume was determined in Jonagold Supra, and the lowest fruit canopy is determined by the variety Jonaprince. Based on the counting of flower spurs per tree largest number of flower spurs was determined in Novaya varieties and the lowest in cv Decosta. The highest average length of branches was observed in varieties Decosta, and the shortest in Jonagold Supra. The highest flowering density index was found in varieties Decosta, and lowest in Jonagold Supra, while the same in the varieties Jonaprince and Jonagold. The average distance of the first element of gender-through is highest for Jonagold and the lowest in Jonagold Supra. The largest percentage spur shoots was found in the cultivar Jonaprince and lowest in Jonagold Supra. The largest percentage of spur shoots on fruit branches has Jonagold Supra, and the lowest Jonagold, while no short fruit branches are found at variety Decosta, Novajo and Jonaprince. The highest percentage of long fruit branches have Jonagold and Idared Supra and the lowest Jonaprince and Decosta.